#include<stdio.h>
#include<stdlib.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<string.h>
#include<netdb.h>


#define SERVER_PORT 5432
#define MAX_LINE 256


int main(int argc,char*argv[]){
    FILE*fp;
    struct hostent *hp;
    struct sockaddr_in sin;
    char*host;
    char buf[MAX_LINE];
    int s;
    int len;
    if(argc ==2){
        host = argv[1];
    }
    else{
        fprintf(stderr,"usage:simple-talk host \n");
        exit(1);
    }
    hp = gethostbyname(host);
    bzero((char*)&sin,sizeof(sin));
    sin.sin_family = AF_INET;
    bcopy(hp->h_addr,(char*)&sin.sin_addr,hp->h_length);
    sin.sin_port = htons(SERVER_PORT);
    if((s=socket(PF_INET,SOCK_STREAM,0))<0){
        perror("simplex-talk:socket");
    }
    if(connect(s,(struct sockaddr*)&sin,sizeof(sin))<0){
        perror("simplex-talk:connect");
        close(s);
        exit(1);
    }
    while(fgets(buf,sizeof(buf),stdin)){
        buf[MAX_LINE-1]='\0';
        len = strlen(buf)+1;
        send(s,buf,len,0);
    }

}